Nanometrics Data Formats Reference Guide

Chapter 1: NMXP Data Format
1 = true
bits 2-1: antenna status
0 = ok
1 = overcurrent
2 = not connected
3 = n/a
bit 0: engine powered
0 = not powered
1 = powered
1 byte int8 number of visible satellites
1 byte int8 number of tracked satellites
1 byte int8 UTC offset (s); difference between UTC and GPS time frame
2 bytes short clock bias (ns) of GPS engine
2 bytes ushort frequency bias (Hz) of GPS engine
2 bytes float16 receiver temperature (deg C) on GPS engine
2 bytes float16 measured antenna voltage (V)
1.5.45 NMXbus Master Soh bundle
1 byte int8 bundle type = 63
4 bytes long long seconds
2 bytes ushort instrument id
3 bytes uint24 number of slot requests received; (mod 10 million)
3 bytes uint24 number of slot permits issued; (mod 10 million)
3 bytes uint24 number of slot denials issued; (mod 10 million)
1 byte — spare
1.5.46 NMXbus Request Soh bundle
1 byte int8 bundle type = 64
4 bytes long long seconds
2 bytes ushort instrument id
3 bytes uint24 number of slot requests sent; (mod 10 million)
3 bytes uint24 number of slot permits received; (mod 10 million)
3 bytes uint24 number of slot denials received; (mod 10 million)
1 byte — spare
1.5.47 NMXbus Rx Soh bundle
1 byte int8 bundle type = 65
4 bytes long long seconds
4 bytes long Rx good packets; number of good bus messages received (mod 1 billion)
4 bytes long Rx bytes; number of bytes received (mod 1 billion)
2 bytes short Rx buffer overrun; number of Rx FIFO overruns (mod 10,000)
14602R4
Nanometrics Data Formats
2003-11-07 Reference Guide
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